A 36-pole alternator is operated at 20 rps. What frequency is generated? Also At what speed should a six-pole alternator be driven to develop 40 cycles
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- A 36-pole alternator is operated at 20 rps. What frequency is generated? Also At what speed should a six-pole alternator be driven to develop 40 cycles?
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- The maximum speed of an alternator working at 60 Hz is possible when the number of poles of the machine is **.***LEE a. 2 b.4 C. 5 d. 3 The cerrecttanswer is 2An alternator has a poles a) At what speed must the machine be driven to develop 60 cycles? 25cycles? What frequency is developed if the speed is 1,000 rpm?Q1/ Caleulate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors per slot connected in two layers. The slots per pole per phase are 8 and the coil span is 20 slots. The phase spread is 60° and the flux per pole is 25-8 x 10 weber.
- There are 72 slots in a 3-phase, 8-pole, 50 Hz, star connected alternator. There are 2 conductors in each slot and all the conductors in a phase are connected in series. Coil span is 150° electrical and the flux per pole is 0.05 Weber sinusoidally distributed. Calculate the emf induced per phase.A three phase, 50 Hz, 8 pole alternator has a star connected winding with 120 slots and 6 conductor per slot. The flux per pole is 0.05 Wb, sinusoidally distributed. Determine the phase and line voltages if the coil is full pitched.What are the losses taking place in an alternator?
- QI/ Calculate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors per slot connected in two layers. The slots per pole per phase are 8 and the coil span is 20 slots. The phase spread is 60° and the flux per pole is 25-8 x 10 weber.Make a general statement on the effect of increasing excitation to the power factor of the alternator.Find the rms value of the induced emf per phase of a 10 pole, three phase, 50 Hz alternator with 2 slots per pole per phase and 4 conductors per slot in two layers. The coil span is 150°. The flux per pole is 0.12 Wb (a) 994 (c) 1020 53. (b) 864 (d) 960
- A basic one-loop dc generator is rotated at 60 rps. How many times each second does the dc output voltage peak (reach a maximum)?(b) A 4-pole 3 phase alternator is driven at 1200 rpm. What is the frequency of the output voltage of the alternator? Explain how the same alternator can be used to generate voltage at 50 Hz.Type your question here Calculate the voltage per phase for a 3-phase 1500 rpm, 4-pole alternator having a 16 conductors per slot connected in two layers. The slots per pole per phase are 8 and the coil span is 20 slots. The phase spread is 60° and the flux per pole is 25·8 × 10–3 weber.